Yes very good it's above the average such character can have without magic, feat or featture to bump it. A level 8 barbarian has an average of 61 (12 + 7 + 7 + 7 + 7 + 7 + 7 + 7 ) with the possibility to have Constinution modifier up to 5 adding 40 hit points (8 x 5). Feat such as Tough could add another 16 hit points ( 8 x 2) and trait like Dwarven Toughness could add another 8 hit points (8 x 1) depending on your race. Rolling HD12 can obviously top that but luck would need to be steady.
So how does it get 125 hit points is the fun question?
Is 125 HP really good for a level 8 bear totem barbarian?
Yes very good it's above the average such character can have without magic, feat or featture to bump it. A level 8 barbarian has an average of 61 (12 + 7 + 7 + 7 + 7 + 7 + 7 + 7 ) with the possibility to have Constinution modifier up to 5 adding 40 hit points (8 x 5). Feat such as Tough could add another 16 hit points ( 8 x 2) and trait like Dwarven Toughness could add another 8 hit points (8 x 1) depending on your race. Rolling HD12 can obviously top that but luck would need to be steady.
So how does it get 125 hit points is the fun question?
This is assuming that your not rolling for HP:
Barb HP: 7*Level+5
Con Mod: ConMod*Level
Dwarven Toughness + Tough: Level *3
(7*8+5) + (5*8) + (3*8)
15*8+5 = 125